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16 results on '"Fujimoto, Ryuichi"'

1. Resolve Instrument on X-ray Astronomy Recovery Mission (XARM)

Author

Yasuda, S., Brown, G. V., Eckart, M. E., Hayashi, T., Kelley, R. L., Kilbourne, C. A., Leutenegger, M. A., Porter, F. S., Soong, Y., McCammon, D., Szymkowiak, A. E., The, XARM Resolve Team, Ishisaki, Yoshitaka, Ezoe, Yuichiro, Yamada, Shinya, Ichinohe, Yuto, Fujimoto, Ryuichi, Takei, Yoh, Ishida, Manabu, Yamasaki, Noriko Y., Maeda, Yoshitomo, Tsujimoto, Masahiro, Iizuka, Ryo, Koyama, Shu, Noda, Hirofumi, Tamagawa, Toru, Sawada, Makoto, Sato, K., Kitamoto, Shunji, Hoshino, Akio, Mori, Hideyuki, and Okajima, Takashi

Subjects
Physics, X-ray astronomy, Spectrometer, Cryogenic detector, Astronomy, Condensed Matter Physics, 01 natural sciences, Atomic and Molecular Physics, and Optics, law.invention, 010309 optics, Telescope, Microcalorimeter, law, 0103 physical sciences, Focal length, General Materials Science, Orbit (control theory), 010303 astronomy & astrophysics
Abstract

著者人数: 31名ほか, Accepted: 2018-04-07, 資料番号: SA1180344000

Published
2018

2. Flight model measurements of the porous plug and film flow suppression system for the ASTRO-H Soft X-ray Spectrometer dewar

Author

DiPirro, Michael, Shirron, Peter, the, SXS team, Ezoe, Yuichiro, Ishikawa, Kumi, Mitsuishi, Ikuyuki, Ohashi, Takaya, Mitsuda, Kazuhisa, Fujimoto, Ryuichi, Murakami, Masahide, Kanao, Kenichi, Yoshida, Seiji, and Tsunematsu, Shoji

Subjects
Materials science, Porous plug phase separator, Spectrometer, Mass flow, X-ray microcalorimeter, General Physics and Astronomy, Separator (oil production), Mechanics, 01 natural sciences, Volumetric flow rate, law.invention, 010309 optics, Superfluid film flow, Nuclear magnetic resonance, law, 0103 physical sciences, Water cooling, Space cryogenics, General Materials Science, Zero gravity, 010306 general physics, Porosity, Spark plug
Abstract

著者人数: 12名ほか, Accepted: 2015-12-18, 資料番号: SA1160047000

Published
2016

3. Flight Model Performance Test Results of a Helium Dewar for the Soft X-ray Spectrometer onboard ASTRO-H

Author

DiPirro, Mike, Shirron, Peter, Yoshida, Seiji, Miyaoka, Mikio, Kanao, Ken'ichi, Tsunematsu, Shoji, Otsuka, Kiyomi, Hoshika, Shunji, Mitsuda, Kazuhisa, Yamasaki, Noriko, Takei, Yoh, Fujimoto, Ryuichi, and Sato, Yoichi

Subjects
Physics, Stirling cooler, Spectrometer, Liquid helium, Nuclear engineering, Refrigerator car, General Physics and Astronomy, chemistry.chemical_element, Heat sink, Cooling system, 01 natural sciences, Calorimeter, law.invention, 010309 optics, Joule-Thomson cooler, Nuclear magnetic resonance, chemistry, law, 0103 physical sciences, Thermal, Space cryogenics, General Materials Science, 010306 general physics, Helium, Superfluid helium-4
Abstract

著者人数: 13名, Accepted: 2015-10-16, 資料番号: SA1150285000

Published
2016

4. Design and on-orbit operation of the soft x-ray spectrometer adiabatic demagnetization refrigerator on the Hitomi observatory

Author

Shirron, Peter John, Kimball, Mark O., James, Bryan L., Muench, Theodore, Canavan, Edgar R., DiPirro, Michael J., Bialas, Thomas A., Sneiderman, Gary A., Boyce, Kevin R., Kilbourne, Caroline Anne, Porter, Frederick S., Fujimoto, Ryuichi, Takei, Yoh, Yoshida, Seiji, and Mitsuda, Kazuhisa

Subjects
Materials science, Nuclear engineering, Refrigerator car, chemistry.chemical_element, Cryogenics, Heat sink, microcalorimeter, 01 natural sciences, law.invention, 010309 optics, Operating temperature, law, 0103 physical sciences, 010306 general physics, Instrumentation, Helium, Spectrometer, Liquid helium, Mechanical Engineering, Astronomy and Astrophysics, Cryocooler, Electronic, Optical and Magnetic Materials, adiabatic demagnetization refrigerator, astronomy, chemistry, x-ray, Space and Planetary Science, Control and Systems Engineering
Abstract

著者人数: 15名, Accepted: 2018-02-19, 資料番号: SA1180074000

Published
2018

5. Cryogen-free operation of the Soft X-ray Spectrometer instrument

Author

Sneiderman, Gary A., Shirron, Peter J., Bialas, Thomas G., Boyce, Kevin R., Chiao, Meng P., DiPirro, Michael J., Eckart, Megan E., Hartz, Leslie, Kilbourne, Caroline A., Masters, Candace, McCammon, Dan, Porter, Frederick S., Szymkowiak, Andrew E., Fujimoto, Ryuichi, Ishisaki, Yoshitaka, Mitsuda, Kazuhisa, Noda, Hirofumi, Takei, Yoh, Tsujimoto, Mashiro, and Yoshida, Seiji

Subjects
Cryostat, Materials science, Nuclear engineering, chemistry.chemical_element, Cryogenics, Heat sink, magnetic refrigeration, law.invention, cooling system, law, Water cooling, cryocooler, cryogenic, Soft X-ray Spectrometer, cryogen free, Instrumentation, Helium, Spectrometer, Liquid helium, Mechanical Engineering, Astronomy and Astrophysics, Cryocooler, Astro-H, Electronic, Optical and Magnetic Materials, adiabatic demagnetization refrigerator, chemistry, Space and Planetary Science, Control and Systems Engineering
Abstract

著者人数: 20名, Accepted: 2018-02-22, 資料番号: SA1180075000

Published
2018

6. Thermal analyses for initial operations of the soft x-ray spectrometer onboard the Hitomi satellite

Author

DiPirro, Michel, Shirron, Peter, Noda, Hirofumi, Mitsuda, Kazuhisa, Okamoto, Atsushi, Ezoe, Yuichiro, Ishikawa, Kumi, Fujimoto, Ryuichi, Yamasaki, Noriko, Takei, Yoh, Ohashi, Takaya, Ishisaki, Yoshitaka, Mitsuishi, Ikuyuki, and Yoshida, Seiji

Subjects
x-ray microcalorimeter, Materials science, Nuclear engineering, chemistry.chemical_element, Cryogenics, 01 natural sciences, law.invention, thermal simulation, 010309 optics, soft x-ray spectrometer, Hitomi (ASTRO-H), law, 0103 physical sciences, Water cooling, 010306 general physics, Instrumentation, Helium, Remote sensing, Spectrometer, Liquid helium, Mechanical Engineering, Astronomy and Astrophysics, Electronic, Optical and Magnetic Materials, thermal mathematical model, chemistry, Space and Planetary Science, Control and Systems Engineering, cryogenics, Orbit (dynamics), Satellite, Zero gravity
Abstract

著者人数: 14名, Accepted: 2017-10-03, 資料番号: SA1170314000

Published
2018

7. Ground calibration of the Astro-H (Hitomi) soft x-ray spectrometer

Author

Eckart, Megan E., Adams, Joseph S., Boyce, Kevin R., Brown, Gregory V., Chiao, Meng P., Haas, Daniel A., den, Herder Jan-Willem A., Kilbourne, Caroline A., Leutenegger, Maurice A., McCammon, Daniel, Porter, F. Scott, Sneiderman, Gary A., Szymkowiak, Andrew E., de, Vries Cor P., Watanabe, Tomomi, Fujimoto, Ryuichi, Hoshino, Akio, Ishisaki, Yoshitaka, Kitamoto, Shunji, Mitsuda, Kazuhisa, Sato, Kosuke, Sawada, Makoto, Seta, Hiromi, Takei, Yoh, Tashiro, Makoto S., Tsujimoto, Masahiro, Yamada, Shinya, and Yamasaki, Noriko Y.

Subjects
Materials science, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, x-ray spectroscopy, microcalorimeter, 01 natural sciences, law.invention, Telescope, detectors, calibration, Optics, law, 0103 physical sciences, Calibration, Spectral resolution, 010306 general physics, Optical filter, 010303 astronomy & astrophysics, Instrumentation, Spectrometer, business.industry, Mechanical Engineering, Thermistor, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Synchrotron, Electronic, Optical and Magnetic Materials, Space and Planetary Science, Control and Systems Engineering, business
Abstract

著者人数: 28名, Accepted: 2018-02-22, 資料番号: SA1170305000

Published
2018

8. Calibration of the microcalorimeter spectrometer on-board the Hitomi (Astro-H) observatory

Author

Eckart, M. E., Boyce, K. R., Brown, G. V., Chiao, M. P., Haas, D., den, Herder J.-W., Kelley, R. L., Kilbourne, C. A., Leutenegger, M. A., McCammon, D., Porter, F. S., Sneiderman, G. A., Szymkowiak, A. E., de, Vries C. P., Watanabe, T., Fujimoto, Ryuichi, Ishisaki, Yoshitaka, Mitsuda, Kazuhisa, Sawada, Makoto, Takei, Yoh, Tashiro, Makoto, Tsujimoto, Masahiro, Yamada, Shinya, and Yamasaki, Noriko Y.

Subjects
Physics, Spectrometer, Physics::Instrumentation and Detectors, business.industry, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, X-ray optics, X-ray telescope, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, law.invention, 010309 optics, Telescope, Optics, Observatory, law, 0103 physical sciences, Calibration, Plasma diagnostics, 0210 nano-technology, Optical filter, business, Instrumentation
Abstract

著者人数: 24名, Accepted: 2016-07-22, 資料番号: SA1160252000

Published
2016

9. Development of porous plug phase separator and superfluid film flow suppression system for the Soft X-ray Spectrometer onboard ASTRO-H

Author

DiPirro, Michael, Shirron, Peter, the, SXS team, Ezoe, Yuichiro, Ishikawa, Kumi, Ohashi, Takaya, Yamaguchi, Hiroya, Mitsuda, Kazuhisa, Fujimoto, Ryuichi, Murakami, Masahide, Kanao, Kenichi, Yoshida, Seiji, and Tsunematsu, Shoji

Subjects
Materials science, Spectrometer, Liquid helium, business.industry, General Physics and Astronomy, Separator (oil production), Cryogenics, Superfluid film, law.invention, Optics, law, Mass flow rate, Water cooling, General Materials Science, Spark plug, business
Abstract

著者人数: 12名, 資料番号: SA1004213000

Published
2012

10. Development of mechanical cryocoolers for the cooling system of the Soft X-ray Spectrometer onboard Astro-H

Author

ASTRO--H SXS team, Sato, Yoichi, Shinozaki, Keisuke, Sugita, Hiroyuki, Mitsuda, Kazuhisa, Yamasaki, Noriko Y., Takei, Yoh, Nakagawa, Takao, Fujimoto, Ryuichi, Murakami, Masahide, Tsunematsu, Shoji, Otsuka, Kiyomi, Yoshida, Seiji, Kanao, Kenichi, and Narasaki, Katsuhiro

Subjects
Coolinig performance, Stirling engine, Materials science, Spectrometer, Liquid helium, Nuclear engineering, Joule–Thomson effect, Astro-H/SXS, General Physics and Astronomy, Cryocooler, Power margin, law.invention, Shock (mechanics), symbols.namesake, law, Double-staged Stirling cooler, symbols, Water cooling, Joule Thomson cooler, General Materials Science, Lifetime
Abstract

Astro-H is the Japanese X-ray astronomy satellite planned for launch in 2014. The Soft X-ray Spectrometer (SXS) onboard Astro-H, is a high energy resolution spectrometer utilizing an X-ray micro-calorimeter array, which is operated at 50 mK by the ADR with the 30-L superfluid liquid helium (LHe). The mechanical cryocoolers, 4 K-class Joule Thomson (JT) cooler and 20 K-class double-staged Stirling (2ST) cooler are key components to achieve a LHe lifetime for over 3 years in orbit (5 years as a goal). Based on the existing cryocoolers onboard Akari (2006) and JEM/SMILES (2009), modifications for higher cooling power and reliability had been investigated. In the present development phase, the Engineering Models (EMs) of these upgraded cryocoolers are fabricated to carry out verification tests for cooling performance, mechanical performance and lifetime. Nominal cooling power of 200 mW at 20 K for the 2ST cooler and 40 mW at 4.5 K for the JT cooler were demonstrated with temperature and power margin. Mechanical performance test for the 2ST cooler units proves tolerability for pyro shock and vibration environment of the Astro-H criteria. Continuous running of the 4 K-class JT cooler combined with the 2ST precooler for lifetime test has achieved over 5000 h without any degradation of cooling performance.

Published
2012

11. Porous plug and superfluid helium film flow suppressor for the soft X-ray spectrometer onboard Astro-H

Author

DiPirro, Michael, Shirron, Peter, Ishikawa, Kumi, Ezoe, Yuichiro, Yamaguchi, Hiroya, Mitsuishi, Ikuyuki, Yoshitake, Hiroshi, Mitsuda, Kazuhisa, Fujimoto, Ryuichi, Ohashi, Takaya, Murakami, Masahide, Kanao, Ken-ichi, Yoshida, Seiji, Tsunematsu, Shoji, and The, SXS team

Subjects
Physics, Spectrometer, business.industry, Liquid helium, General Physics and Astronomy, Separator (oil production), chemistry.chemical_element, Superfluid film, law.invention, Volumetric flow rate, Physics::Fluid Dynamics, Optics, chemistry, law, General Materials Science, business, Body orifice, Superfluid helium-4, Helium
Abstract

著者人数：14名, Accepted: 2010-02-22, 資料番号: SA1002678000

Published
2010

12. Design, implementation, and performance of the Astro-H soft x-ray spectrometer aperture assembly and blocking filters

Author

Kilbourne, Caroline A., Adams, Joseph S., Arsenovic, Petar, Ayers, Travis, Chiao, Meng P., DiPirro, Michael J., Eckart, Megan E., Kazeva, John D., Kripps, Kari L., Lairson, Bruce M., Leutenegger, Maurice A., Lopez, Heidi C., McCammon, Dan, McGuinness, Daniel S., Moseley, Samuel J., Porter, F. Scott, Schweiss, Andrea N., Thorpe, Rosemary Schmidt, Watanabe, Tomomi, Fujimoto, Ryuichi, Mitsuda, Kazuhisa, Takei, Yoh, Yamasaki, Noriko Y., and Yoshida, Seiji

Subjects
x-ray calorimeter, Aperture, 02 engineering and technology, microcalorimeter, Radiation, 01 natural sciences, radiation-blocking filters, law.invention, 010309 optics, Optics, law, 0103 physical sciences, Instrumentation, Noise-equivalent power, Physics, Spectrometer, Calorimeter (particle physics), business.industry, Mechanical Engineering, Bolometer, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, 021001 nanoscience & nanotechnology, Astro-H, Electronic, Optical and Magnetic Materials, aperture cylinder, Hitomi, Space and Planetary Science, Control and Systems Engineering, Thermal radiation, 0210 nano-technology, business
Abstract

著者人数: 24名, Accepted: 2018-01-22, 資料番号: SA1170313000

Published
2018

13. Cooling system for the soft X-ray spectrometer onboard Astro-H

Author

DiPirro, Mike, Shirron, Peter, Sneiderman, Gary, Kelley, Richard L., Porter, F. Scott, Kilbourne, Caroline A., Crow, John, Mattern, Andrea, Kashani, Ali, McCammon, Dan, Fujimoto, Ryuichi, Mitsuda, Kazuhisa, Yamasaki, Noriko, Takei, Yoh, Tsujimoto, Masahiro, Sugita, Hiroyuki, Sato, Yoichi, Shinozaki, Keisuke, Ohashi, Takaya, Ishisaki, Yoshitaka, Ezoe, Yuichiro, Murakami, Masahide, Kitamoto, Shunji, Murakami, Hiroshi, Tamagawa, Toru, Kawaharada, Madoka, Yamaguchi, Hiroya, Sato, Kosuke, Kanao, Kenichi, and Yoshida, Seiji

Subjects
Stirling engine, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Refrigerator car, General Physics and Astronomy, Thermodynamics, Cryogenics, law.invention, E. Adiabatic demagnetization, symbols.namesake, Optics, law, Water cooling, General Materials Science, E. He II systems, Physics, Spectrometer, Liquid helium, business.industry, Joule–Thomson effect, Astrophysics::Instrumentation and Methods for Astrophysics, Cryocooler, F. Space cryogenics, symbols, E. Stirling, business, E. Joule-Thomson coolers
Abstract

著者人数：31名, Accepted: 2010-02-22, 資料番号: SA1002674000

Published
2010

14. Performance of the helium dewar and the cryocoolers of the Hitomi soft x-ray spectrometer

Author

DiPirro, Michael J., Shirron, Peter J., Sneiderman, Gary A., Kilbourne, Caroline A., Porter, Frederick Scott, Chiao, Meng P., Eckart, Megan E., Fujimoto, Ryuichi, Takei, Yoh, Mitsuda, Kazuhisa, Yamasaki, Noriko Y., Tsujimoto, Masahiro, Koyama, Shu, Ishikawa, Kumi, Sugita, Hiroyuki, Sato, Yoichi, Shinozaki, Keisuke, Okamoto, Atsushi, Kitamoto, Shunji, Hoshino, Akio, Sato, Kosuke, Ezoe, Yuichiro, Ishisaki, Yoshitaka, Yamada, Shinya, Seta, Hiromi, Ohashi, Takaya, Tamagawa, Toru, Noda, Hirofumi, Sawada, Makoto, Tashiro, Makoto, Yatsu, Yoichi, Mitsuishi, Ikuyuki, Kanao, Kenichi, Yoshida, Seiji, Miyaoka, Mikio, Tsunematsu, Shoji, Otsuka, Kiyomi, and Narasaki, Katsuhiro

Subjects
x-ray microcalorimeter, Materials science, Stirling engine, Physics::Instrumentation and Detectors, Nuclear engineering, Refrigerator car, chemistry.chemical_element, Heat sink, 01 natural sciences, law.invention, 010309 optics, law, space cryogenics, 0103 physical sciences, 010306 general physics, Instrumentation, Joule-Thomson cryocooler, Helium, superfluid liquid helium, Spectrometer, Liquid helium, Mechanical Engineering, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Cryocooler, Electronic, Optical and Magnetic Materials, Stirling cryocooler, Hitomi, chemistry, Space and Planetary Science, Control and Systems Engineering, Satellite
Abstract

著者人数: 38名, Accepted: 2017-11-27, 資料番号: SA1170327000

Published
2017

15. Porous plug phase separator and superfluid film flow suppression system for the soft x-ray spectrometer onboard Hitomi

Author

DiPirro, Michael, Kimball, Mark, Shirron, Peter, Ezoe, Yuichiro, Fujimoto, Ryuichi, Ishikawa, Kumi, Ishisaki, Yoshitaka, Kanao, Kenichi, Mitsuda, Kazuhisa, Mitsuishi, Ikuyuki, Murakami, Masahide, Noda, Hirofumi, Ohashi, Takaya, Okamoto, Atsushi, Satoh, Yohichi, Sato, Kosuke, Tsunematsu, Shoji, Yamaguchi, Hiroya, and Yoshida, Seiji

Subjects
x-ray microcalorimeter, Materials science, film flow, Separator (oil production), chemistry.chemical_element, Cooling capacity, porous plug, 01 natural sciences, law.invention, soft x-ray spectrometer, 010309 optics, Nuclear physics, law, 0103 physical sciences, Heat exchanger, 010306 general physics, Spark plug, Instrumentation, Helium, Liquid helium, Mechanical Engineering, superfluid helium, Astronomy and Astrophysics, Mechanics, Superfluid film, Electronic, Optical and Magnetic Materials, chemistry, cryogenics, Space and Planetary Science, Control and Systems Engineering, ASTRO-H (Hitomi), Superfluid helium-4
Abstract

著者人数: 19名, Accepted: 2017-10-03, 資料番号: SA1170306000

Published
2017

16. Multiwavelength Monitoring of the BL Lacertae Object PKS 2155-304 in May 1994. III. Probing the Inner Jet through Multiwavelength Correlations

Author

Urry, C. Megan, Treves, Aldo, Maraschi, Laura, Marshall, Herman L., Madejski, Greg, Penton, Steve, Pesce, Joseph E., Pian, Elena, Celotti, Annalisa, Sambruna, R. M., Shull, J. M., Smith, Paul S., Kii, Tsuneo, Fujimoto, Ryuichi, Makino, Fumiyoshi, Otani, Chiko, Sasaki, Koichi, Takahashi, Tadayuki, and Tashiro, M.

Subjects
PKS 2155-304, Physics, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Light curve, law.invention, Wavelength, Amplitude, Space and Planetary Science, law, ROSAT, Astrophysics::Solar and Stellar Astrophysics, Blazar, BL Lac object, Flare
Abstract

著者人数：19名, Accepted: 1997-04-21, 資料番号: SA1002215000

Published
1997

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